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. 2023 Sep 19;23:439. doi: 10.1186/s12870-023-04434-1

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 1 — Biochemical analyses. A-H Spectrophotometric quantitation of phenols (panels A, E, C, and G) and flavonoids (panels B, D, F, and H) in the different pure (WL, 50WE, 70WE, and E) or aqueous (aq) extracts obtained from common mallow leaves (panels A, B, E, and F) and flowers (panels C, D, G, and H). Results are expressed as mean ± s.d. of four independent measurements (**p < 0.01; ***p < 0.001) and reported as µg of standard equivalent per mg of fresh material weight (FMW). I-J) HPLC–DAD profiles acquired at 280 nm. Representative chromatograms relative to 50WEL and 50WEF samples (in black) and their corresponding aqueous extracts (aq; in red) are shown in overlapping modality. K-L) Spectrophotometric characterization of the anthocyanins (Cyanidin, CYN; Delphinidine, DEL; Malvidine-3-glucoside, MAL3G; Pelargonidin, PLG; Peonidin, PEO; Petunidin-3-glucoside, PTD3G) from pure (panel K) and aqueous (aq; panel L) M. sylvestris flower extracts (WF, 50WEF, 70 WEF, EF). Results are expressed as mean ± s.d. of three independent measurements and reported as µg of standard equivalent per mg of fresh material weight (FMW) (*p < 0.05; **p < 0.01)